Using a time interval to reassess a condition

[Johntron1219]

Hi Everyone,

I was wondering if anyone has experience or ideas for conditional circuits using Bonsai. Here's what I am trying to do:

An event is recorded in a CSV if 2 conditions are met:

1. Color A is present in a region of interest and
2. Color B is present in a different region of interest

Now, I've gotten the function to work, except in one semi-common instance. What keeps happening is that color A will be present in the region for a split-second, and then disappear, while Color B is present in its own region. What I need to do is basically ask: is Color A present? Ok, then is color B present? (wait half a second) Is color A present still, or was the overlap a fluke?

Does anyone have any ideas for a timed circuit I could build? Every time I try a timespan to reassess it won't take the arguments.

Thanks, and I hope this makes sense :)!
John

[bruno-f-cruz]

Hey,

There are a few ways to do this depending on the exact logic you are looking for. If i understood correctly you might just need to use a Throttle operator. This node works a bit like a "low-pass" filter for events by only propagating values that are NOT followed by a new value within X amount of time. As a result, if a value is only transiently True (i.e. True quickly followed by False) the throttle will effectively skip this True value.

hope it helps

[Johntron1219]

Thank you Bruno!

I ended up revising my file to run in parallel 20 frames ahead, but I will keep this in mind as a future option!